the first one is 20x3/4 the second one is 14x2/7 the third one is 10x1/5 the fourth one is 3/4x6 the fifth one is 2/5x11 the sixth one is 1/4x6. the X in the middle of the numbers means times.
so you have listed some numbers.
Is there a question in there somewhere?
And online, it is customary to use * for multiplication, so x does not get confused with a variable name.